All-terrain vehicle



FIG. 1 is a front and left side perspective view of an all-terrain vehicle embodying our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The portions of the vehicle and the vehicle components shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an all-terrain vehicle, as shown and described. 